/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package redinftel.servlets;

import java.io.DataOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.List;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import redinftel.entidades.Usuario;
import redinftel.sesiones.UsuarioFacadeRemote;

/**
 *
 * @author inftel
 */
public class GetAmigosServlet extends HttpServlet {

    @EJB
    private UsuarioFacadeRemote usuarioFacade;
    final String USUARIO = "usuario";

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
         ServletOutputStream out = response.getOutputStream();
        DataOutputStream dos = new DataOutputStream(out);
        try {
            HttpSession session = (HttpSession) request.getSession();
            Usuario u = (Usuario) session.getAttribute("usuario");
            List<Usuario> usuarios = usuarioFacade.findAmigosMinusLista(u, "");
            Iterator<Usuario> iterator = usuarios.iterator();
            dos.writeInt(usuarios.size());
            while (iterator.hasNext()) {
                Usuario us = (Usuario) iterator.next();
                dos.writeInt(us.getPerfil().getIdUsuario().intValue());
                dos.writeUTF(us.getPerfil().getNombre());
                dos.writeUTF(us.getPerfil().getApellidos());
                if (us.getPerfil().getMultimedia()!=null){
                    dos.writeBoolean(true);
                    int tam = us.getPerfil().getMultimedia().getImagen().length;
                   dos.writeInt(tam);
                    int cont =0;
                      byte[] imagen = us.getPerfil().getMultimedia().getImagen();
                    while (cont<tam){
                      dos.writeByte(imagen[cont]);
                      cont++;
                    }
                } else{
                     dos.writeBoolean(false);
                }
            }

        } finally {
           dos.flush();
           dos.close();
           out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}

